Automatic pistol with cock lock



Aug. 5 @2% Mad Bug. 4, 1923 im. A

Patented Aug. 5, 1924,

TY S

15ste:

AUTOMATIC PISTOL 'WIIH COCK LOCK.

Application filed August 4, V1923.- Seral 'Noi 655,787.

ToaJZZ ic/10m t may concern.'

Be it known that I, GEORG VALTHER, a citizen of the' German Reich, residing at Zella-Mehlis I, Germany, have invented cer- 5 tain new and useful Improvements in Automatic Pistols with Cock Locks (for which I have filed application for patent in Germany on the 27 th March, 1923), of which the following is a specification. Y

Self-loading pistols, in which the striker is made ready by the breach blockwhich is drivenback by the recoil possess the inconvenience that the lock isthereby brought into the make-ready posit-ion. If the pistol is not locked by hand it may easily happen that, owing to any conditions forinstance by a push exerted on the trigger, a shotl is fired wherefrom accidents might result. It has therefore been already proposed to fit al self-loading pistol with a cock-lock which is arranged so that the cock, at the first pulling back of the breech block by hand for the insertion of the first cartridge, is not madeready but returns'to the initial position, when the breech block is advanced again,so that the cock does not act upon the lock. n This arrangement ensures the. safety Vof the pistol however only at the iirst pulling back of the breech slide or breech block by hand for the insertion of the first cartridge, theV cock being made ready at once if t e breeclg block is moved back by the action of the recoil so that the pistol isl in this case always unlocked and can-bemade safe only with the -aid of the-well known hand-operated. stop.

Theautomaticpistol with cock-lockl accordingto the present` invention, is characterized in that the cock, which -by the driving back of the breech block, has been made ready, is moved out'of this position byva movable element so that the main spring acting upon said cock pushes the same ina direction opposite tothe directioniin Vwhich thepercussion acts.V The'automatlc control of the position of the cock by thev movable ele-ment'- can be suppressed merely byy an outside action for instance by gripping the automatic pistol with the hand. If the butt of the pistol isgripped with the hand the cockV andthe main spring are brought from the slacking positioninto the dead-pointpositionso that the pulling of the cock may i be eHected/by the operation of the trigger. In one form of construction of the auto'-VA The maink spring is connected lwithl the cock by means which act like a toggle lever so that these means, stretched in the one direction, maintain the cock in the slacking position, said cock being brought into the dead-point position or beyond the same only if the lever is operated vbyhandv so that at the pulling of the trigger the cock is thrown forward ltliroughthe intermediary of the main spring.

The toggle-lever action of the main spring upon the cock is produced by a support which intercepts the pressure of*v the main spring, the fulcrum of said su port on the cock being eccentrically situatecY with regard to the fulcrum of the cock.

Numerous other forms of execution of the invention might be imagined.

Two embodiments of theinvention are shown by way of example on=the accompanying drawing wherein: l y

Figs. l and 2 show the preferred form of construction,

- Figs. 3 and f4 showing :the-second form of construction.

DI ,i

` The Figures 1 and?) shou7 the cock in the slacking position and Figures-2 and4'show the same-inthe ready position. The` cock 5 is mounted inthe butt 1v1-so that it can pivot around bolt 1. The cock 5 has a downwardly directed extension inwhich the pivot pin 2 -of the spring support 3 is rotatably mounted. This support' engages with-the bearing 4 of the main spring 10.. 7 is the trigger with shoulder 8.' lThe striking face of the cock is designated by 6.

.` The cock 5r is brought into the readyor dead-point position by the breech block being driven back. In ordertobring the cock into the slacking position-a movable element is provic'led-Which.'acts upon the cock. According to' F igs. l Vand2 this element consists/ of a lever 13 pivotal-ly mounted in the handle-l1 by meansof api-vot pin-12 and controlled by a blade spring-21so-that-'said lever has the tendency to project fronrthe handle, the movement of the lever being however limited by the stops 18, 19. A hookshaped lever 20 is pivotally mounted at 22 on the lever 13 so that its nose 2Oa is adapted to grip over the cock 5 said lever being acted upon by a spring 23.

The operation is as follows z- If by the driving back of the breach block the cock is pushed back to the readyor dead-point position and if the pistol is still held by the hand the lever 13 is pressed into the handle and the cock 5 is held by the nose 20l of the hooked lever 20. If the pistol is now put aside so that the pressure of the K hand on the lever 13 ceases, this lever adopts the position shown in Fig. 1 whereby the lever 13 pulls the hook-shaped lever 20 downward so that the cock is slightly pulled back. The supporting points l, 2 and 1 are in this case situated as shown in Fig. 1, so that a toggle lever is formed by the parts a, Z2 (extension of the cock and main spring support) the one lever ZJ of which encloses an angle of. with the line of connection of the cock (fulcrum 1) and supporting point 4.

The pull of the hook-shaped lever 20 has the effect that the cock is pulled into this inoperative position and securely held in the same.

If the pistol is again gripped with the hand and the lever 13 pressed into the handle (Fig. 2) the fulcrum 22 of' lever 2O moves upward. It the trigger 7 is pulled, the cock is acted upon by the notch of the trigger so that the toggle lever a, Z) is stretched and if the trigger is pulled again so that its nose 7a presses upon the face 24 of lever 2O the lever is pushed away from the cock and the angle a: of the lever arms a, b is situated on the other side of the connecting line between fulcrum of the cock and main spring so that the cock is released.

In the form of construction shown in Figs. 3 and 4 the main spring 10 is oscillable, being accommodated in a casing 15 which is oscillably'mounted in the handle 11 on the pivot bolt 16. lf the upper end of this casing 15 is pushed by the action ot a spring 17 so that it projects from the handle the toggle lever a, b forms again the angle oc so that the main spring 10 has the tendency to hold the slack cock in this inoperative position, but. if the casing 15 is pressed into the handle the support 3 of the main spring alters its position as the spring 10 has oscillated around the pivot 16 so that the angle oa, formed by the support 3 and the connecting line 1, 4 is situated on the other side and the cock adopts consequently the ready position Vfrom which it is released by the operation of the trigger. Stops 18, 19 are also provided in order to limit the inward and outward movement of the casing 15 in the handle 11.

I claim 1. A self-loading pistol with hammer-lock comprising in combination a main spring, a breech block adapted to be driven back by the recoil, a hammer adapted to be brought into the ready position by the backward movement of said breech block, a movable grip controlled element for automatically moving said hammer rearwardly upon release of the grip, and means whereby said main spring tends to oscillate said hammer in a direction opposite to the first direction.

2. A self-loading pistol with hammer-lock comprising in combination a main spring, a breech block adapted to be driven back by the recoil, a hammer adapted to be brought into the ready position by the backward movement of' said breech block, a movable grip controlled element Yfor automatically moving said hammer rearwardly 'upon release of the grip, means whereby said main spring tends to oscillate said hammer in a direction opposite to the first direction, and an element for suppressing the action of said grip controlled element on said hammer by an action exerted from the outside.

3. A self-loading pistol with hammer-lock comprising in combination a main spring, a breech block adapted to be driven back by the recoil, a hammer adapted to be brought intorthe ready position by the backward -1 movement of said breech block, a movable grip controlled element for automatically moving said hammer rearwardly upon release of the grip, means whereby said main spring tends to oscillate said hammer in a direction opposite to the first direction, and an element for suppressing the action of said grip controlled element on said hammer if the arm is being gripped with the hand.

4L. A self-loading pistol with hammerdock comprising in combination a main spring, a. breech block adapted to be driven back by the recoil, a hammer adapted to be brought into the ready position by the backward movement of said breech block, a main spring acting upon said hammer, a trigger for releasing said hammer for firing, a movable grip controlled element for automatically moving said hammer rearwardly upon release of the grip, means whereby said main spring tends to oscillate said hammer in a' direction opposite to the first direction, an element adapted to be oscillated if the pistol is gripped with the hand designed to bring the hammer and the main spring from the idle position into a dead-point position so that the hammer may be operated by the trigger.

5. A self-loading pistol with hammer-lock comprising in combination, a breech block adapted to be driven back by the recoil, a hammer adapted to be brought into the ready position by the backward movement of said breech block, a main spring acting upon said hammer, a trigger for releasing said hammer cock for liring, a lever pivotally mounted in the handle of the pistol, a blade spring acting upon the lower inner end of said lever so that this lower end projects from the surface of the handle, a spring-controlled locking lever pivotally mounted on the upper inner end of said lever in the handle, a nose at the uper end of said locking lever adapted to grip over said hammer so that said hammer is pulled from the readyor dead-point position into the safety position if said lever of the handle is left to the action of its blade spring.

6. A self-loading pistol with hammer-lock comprising in combination, a breech block adapted to be driven back by the recoil, a hammer adapted to be brought into the ready position by the backward movement of said breech block, a main spring acting upon said hammer, a trigger for releasing said hammer for firing, a lever pivotally mounted in the handle of the pistol, a blade spring acting upon the lower inner end of said lever so that this lower end projects from the surface of the handle, a spring-coin trolled locking lever pivotally mounted on the upper inner end of said lever in the handle, a nose vat the upper end of said locking lever adapted to grip over said ham mer so that said hammer is pulled from the readyor dead-point position into the safety position if said lever of the handle is left to the action of the blade spring, and means for connecting said hammer with said main spring, said means acting like a toggle lever so that if stretched in one direction it holds the hammer in the safety position but moves the same into the dead-point position if said lever in the handle is being pressed into the handle by the hand which grips t-he pistol. i

7. A self-loading pistol with hammer-lock comprising in combination, a breech block adapted to be driven back by the recoil, a 4 cock adapted to be brought into the ready position by the backward movement of said breech block, a main spring acting upon said cock, a trigger for releasing said cock for firing, a lever pivotally mounted inthe 5 handle of the pistol, a blade spring acting upon the lower inner end of said lever so that this lower end projects from the surface of the handle, a spring-controlled looking lever pivotally mounted on the upper inner 5 end of said lever in the handle, a nose at the upper end of said locking lever adapted to grip over said cock so that said cock is pulled from the readyposition or deadpoint position into the safety position if 6 said lever of the handle is left to the action of the blade spring, and a downwardly projecting extension of said cock, a support between said main spring and said cock pivotally connected with said extension of the 6 cock eccentricallygto the fulcrum of the cock and forming together with said extension a kind of toggle lever so that if stretched in one direction this toggle lever connection holds the cock in the safety position but moves the same into the dead-point position if said lever in the handle is being pressed into the handle by the hand whichv grips the pistol.

In testimony whereof I affix my signature in presence of two witnesses.

GEORG VVALTHER. Witnesses:

GERTRUDE DUQUE, CLARE SCHMITZ. 

